NORSOK STANDARD

1 NORSOK STANDARDPRESERVATIONZ-006 Rev. 1, April 1997 Please note that whilst every effort has been made to ensure the accuracy of the NORSOK standards neither OLF norTBL or any of their members will assume liability for any use FOREWORD21 SCOPE32 NORMATIVE REFERENCES33 DEFINITIONS AND Abbreviations34 PRESERVATION Functional Preservation Status Common Documentation65 PRESERVATION General Discipline requirements7 ANNEX A PRESERVATION DOCUMENTATION (NORMATIVE)9 PreservationZ-006 Rev. 1, April 1997 NORSOK STANDARD Page 2 of 18 FOREWORDNORSOK (The competitive standing of the Norwegian offshore sector) is the industry initiative to add value, reducecost and lead time and remove unnecessary activities in offshore field developments and NORSOK standards are developed by the Norwegian petroleum industry as a part of the NORSOK initiative andare jointly issued by OLF (The Norwegian Oil Industry Association) and TBL (The Federation of NorwegianEngineering Industries).

2 NORSOK standards are administered by NTS (Norwegian Technology Standards Institution).The purpose of this industry STANDARD is to replace the individual oil company specifications for use in existing andfuture petroleum industry developments, subject to the individual company's review and NORSOK standards make extensive references to international standards. Where relevant, the contents of thisstandard will be used to provide input to the international standardisation process. Subject to implementation intointernational standards, this NORSOK STANDARD will be A is 1, April 1997 NORSOK STANDARD Page 3 of 181 SCOPEThis STANDARD defines the principles and structure to ensure that equipment and systems are kept preserved during allphases of the project, before taken into NORMATIVE REFERENCESFEAMR egulation for Electrical Installations, Maritime DEFINITIONS AND DefinitionsExecutor: An organisation, supplier, contractor that performs a predefined scope of : The protection, and preventive maintenance carried out on equipment and systems before it is taken Preservation.

3 The application of specified preservatives and fitting of specified protection to anyequipment/system by suppliers prior to delivery, to maintain the equipment/system Maintenance: The periodic activities to confirm that the initial preservation is intact and also includes repair of deteriorated initial Record: The different forms for each discipline, which together with this STANDARD defines and records thepreservation requirements and Dossier: Preservation documentation compiled in MC packages. (Paper or electronic format)Preservation Check List: The preservation check list, which defines the minimum requirements to maintain the Additional Maintenance Preservation Requirement: Defines suppliers additional requirements to keep theinitial preservation Program: Is a computerised system which identifies the preservation requirements and the last and thenext date for preservation based on periodic intervals for the package: A practical unit of the scope of work for one discipline within a Commissioning package.

4 A practical scope of work unit within a System or Subsystem for Commissioning,constituting a functional unit which can be tested by commissioning to confirm its suitability for AbbreviationsHVACH eating, Ventilation and Air ConditioningMCMechanical Completion4 PRESERVATION Functional requirementsThe functional requirements for preservation is to apply and maintain the preservation condition and operability ofsystems and equipment before taken into 1, April 1997 NORSOK STANDARD Page 4 of Preservation Supplier phaseSupplier shall be responsible for: Identification and description of initial and any additional preservation requirements. Performing initial preservation. Performing preservation maintenance. Filling out preservation labels and fix it to the equipment.

5 Documenting preservation activities on preservation records. Filing of toxicological data sheets in the preservation dossier for all preservation products being used. Preparation of preservation dossier. Establishing procedure for packing, marking and protection of skid / equipment including list of preservationmaterials and methods used. Preparation of a procedure for storage of the skid / equipment and for maintenance preservation during theconstruction period at the fabrication site. This procedure shall also include method for removal of the preservationused on the skid / equipment, and shall be included in the preservation Preservation maintenance phaseExecutor shall be responsible for: Timely issue of requisite preservation record sheets and labels to equipment suppliers.

6 Inspection of equipment on receipt. Filling out preservation labels and fix it to the equipment. Preservation maintenance according to requirements and suppliers additional maintenance preservationrequirements. Updating the computer based preservation program. Reinstating preservation in accordance with requirements. Filing of toxicological data sheets in the preservation dossier for all preservation products being used. Recording preservation activities on preservation records. Preparation of preservation dossier where Status Preservation ProgramAn electronic based system should be used to administrate the periodic preservation requirements of equipment andsystems, and to record the status of the same. The engineering indices/registers shall be used for identification of itemsfor which preservation is required.

7 Executor shall keep the preservation system Status reportingExecutor shall report initial preservation status by signing the applicable preservationrecord sheets. Executor shall, when they receive these documents, register the status indicated on the records, into thepreservation Common Common requirementsEnsuring that preservation requirements are included in purchase Suppliers instructionsEquipment suppliers shall establish preservation instructions based on this STANDARD , covering all project Initial preservationInitial preservation shall be based on specified storage conditions and for applicable 1, April 1997 NORSOK STANDARD Page 5 of 18 Any supplier additional preservation requirements specific to particular equipment during storage and construction shallbe identified and details given by the supplier on Suppliers additional maintenance preservation requirements.

8 Preservation maintenanceThe Executors minimum requirements for preservation maintenance shall be as detailed on the preservation check listsincluded in Annex maintenance check lists have been developed for the mechanical, electrical and instrument mechanical check list also covers preservation for HVAC, piping, insulation, surface protection, structural,architectural and safety check list also covers preservation of fire and gas equipment, telecommunication equipment and computerrelated IntervalInterval used on the check list are as follows:Interval1(1 week)2(2 weeks)3(3 weeks)4(4 weeks)8(8 weeks)12(12 weeks)24(24 weeks)Calls for interval higher than 1 week shall include the checks covered by the lower interval(s) in the Preservationmaintenance check list.

9 For each interval it is a description of the check to be carried out. These descriptions are meant to be no equipment tag number is preservation is removed or damaged due to normal construction or commissioning activities, or for any other reason,Executor shall rectify or reinstate the Inspection of equipment on receiptAll equipment shall, on delivery to the next phase, be checked with respect to the condition of the preservation. Anyanomalies shall be rectified according to equipment packages supplied internally preserved, hermetically sealed with humidity detectors fitted, no furtheraction except external inspection is required during storage StorageExecutor shall be solely responsible for the care and cleanliness of the equipment during off-loading, handling, storageand construction period and shall ensure a STANDARD of care and cleanliness appropriate to the type and duty of theequipment.

10 Outdoor storage is only acceptable for equipment prepared for it by the supplier. Maintenance preservationaccording to this STANDARD shall be performed during storage special or sensitive equipment, designated store rooms shall be heated, vented and clean. The storage environmenthave to fulfil suppliers Protective coatingExposed external machined surfaces shall be coated with a rust preventive 1, April 1997 NORSOK STANDARD Page 6 of 18 Drinking water units / systems shall not be coated internally with wax, oil, antifreeze or toxic materials or any otherpreservation material that may jeopardize the health of personnel using the drinking Construction / weather protectionDuring fabrication, installation and construction, a temporary protective slanting roof with sidings shall be erectedaround equipment skids and such special equipment as inline instr.